I live on the other side of Riverside Park, so I'm very familiar with SoBo/Riverside/Locust Point. Riverside is one of the higher-income neighborhoods near downtown (along with LP, Fed Hill, Canton, Fells, and Harbor East). You didn't mention the actual block, but certain blocks of Jackson St are particularly desirable (1600-1700 blocks). The area is stable, so you're not going to see crazy appreciation/growth in the coming years, but you'll have steady interest from folks looking to rent. Yes, the rental market is good, but that side of the park is much more family-oriented and a bit older than west of the park. My sense is that you'll need to do a quality rehab - of the 4 BR at least - to be competitive in the market, or you'll need to be willing to accept below market rent. Parking is very important in this part of Baltimore, particularly for families, so any off-street parking is valuable. One thing I didn't see others mention is the need for a non-owner occupied dwelling license. If it's legally just a single family home, it's a challenging process to convert to a multifamily in R-8 requiring a city ordinance.
SUBTITLE 7
RESIDENTIAL CONVERSIONS
§ 9-701. Where allowed.
In the Residence Districts, the conversion of a single-family dwelling to a multi-family dwelling
is allowed only in the R-7, R-8, R-9, and R-10 Districts, subject to:
(1) the requirements of this subtitle; and
(2) in the R-7 and R-8 Districts, conditional-use approval by Ordinance of
the Mayor and City Council.