The specifics should be clearly outlined in the lease agreement.Documentation and Approval:Document the TI allowance in the lease agreement, specifying any conditions or restrictions.

Some cities require permits and have other restrictions, etc.   

Restrict to secondary family rooms etc.At least you can keep things narrowed down to assure less wear and tear on the whole place.

Heloc's on investment property are actually much more pricier & restrictive than hard money..

. § 227 SEC. 227. [47 U.S.C. 227] RESTRICTIONS ON THE USE OF TELEPHONE EQUIPMENT(A) to make any call (other than a call made for emergency purposes or made with the prior express consent of the called party) using any automatic telephone dialing system or an artificial or prerecorded voice—

Are there restrictions on rentals?

While it provides significant benefits to lenders, it also imposes restrictions and potential challenges for borrowers.

In Los Osos for example, they just recently lifted the building moratorium which had essentially imposed a ban on construction in the town for the past decades. 

The challenge for present day investors is with elevated mortgage rates and record high housing prices, the carrying costs and incentive to invest now can be restrictive. 

Look to your lease too to see if it imposes greater procedural requirements on you to give the tenant notice to cure a curable violation.